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Hi Mike,

Thank you for catching this. This topic was discussed during the September
PTG and it was agreed that: "The OVO sub-team has accepted to also continue
the adoption of the new engine facade (
https://blueprints.launchpad.net/neutron/+spec/enginefacade-switch),
since both efforts work in the DB layer and entail traversing the code
looking for opportunities of adoption" [1]. Unfortunately, we lost members
of the OVO sub-team, to the point that the weekly meeting was recently
removed [2]. As a consequence, this will be my personal goal for the Train
cycle. I have restored the two patches that you pointed out and I'll
re-start the effort from there [3][4]. I am also adding this topic to the
discussion during the upcoming PTG.


[1] See section "Neutron upgrades/OVO" in
http://lists.openstack.org/pipermail/openstack-dev/2018-September/135032.html
[2] https://review.openstack.org/#/c/645181/
[3] https://review.openstack.org/#/c/545501/
[4] https://review.openstack.org/#/c/396121/

On Tue, Apr 16, 2019 at 8:13 AM Mike Bayer <mike_mp at zzzcomputing.com> wrote:

> There are a lot of very important and large DB related changes here
> that were unfortunately abandoned by their contributors [1] [2].
> Neutron remains from a SQLAlchemy / oslo.db perspective in this very
> awkward state where it is halfway between using legacy oslo.db access
> patterns and the "newer" enginefacade, which is now four years old.
> This leads to complicated issues that are difficult to develop around
> and debug [3].
>
> I don't have a solution to this problem as I am not tasked with
> Neutron to the degree that would be necessary to complete these
> migrations on my own, however as always, I eagerly await the arrival
> of developers who can commit to seeing these refactorings through,
> where I will of course be available to help.
>
> [1] https://review.openstack.org/#/c/545501/
> [2] https://review.openstack.org/#/c/396121/
> [3]
> https://review.openstack.org/#/c/348080/57/neutron/tests/unit/extensions/test_subnet_onboard.py@42
>
>
> On Tue, Apr 16, 2019 at 5:08 AM Slawomir Kaplonski <skaplons at redhat.com>
> wrote:
> >
> > Hi,
> >
> > I just run abandon_old_reviews.sh [1] script again for neutron,
> neutron-lib and neutron-tempest-plugin repositories.
> > So if You have Your patch abandoned but You want to continue to work on
> it, please simple restore it or if You can’t restore it by self, please
> ping me on irc (slaweq) and I will restore it for You.
> >
> > [1]
> https://github.com/openstack/neutron/blob/master/tools/abandon_old_reviews.sh
> >
> > —
> > Slawek Kaplonski
> > Senior software engineer
> > Red Hat
> >
> >
>
>
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